Fantastic two compartment rucksack from lowepro. Very comfortable, straps are well padded and the length is just right to sit comfortably on the back. Bottom compartment is well padded and has dividers for camera equipment. Can hold a pro slr with zoom lens attached, several lens, flashgun etc. Top compartment is ideal size for food, maps, clothing etc. Water bottle pocket is handy. Tripod pocket for carrying a tripod and raincover to protect your valuable gear. Great for long treks but a bit of a pain for fast access as you have to take the rucksack off and unzip the bottom compartment, take out camera then zip up and put rucksack back on. Apart from lack of quick access a fantastic rucksack and highly recommended.